Table 2: Results of parameters calibration for energy consumption factor models.

Road typeExpress wayArterial roadSecondary roadBranch

Constant
 Coefficient0.247−0.1790.210.208
  (t-value)(15.271)(−2.555)(16.506)(24.417)
 Coefficient−0.0040.004−0.001−0.002
  (t-value)(−5.471)(2.051)(−4.067)(−6.779)
 Coefficient1.5205.4921.5311.553
  (t-value)(48.387)(56.861)(61.547)(210.891)
 Coefficient
  (t-value)(4.112)
Adjusted 0.9960.9970.9980.999

Note: v is the average travel speed, km/h.